Id

[TrappedMetal]

Any ideas on this for a friend? Aparantly it "moves in and out" and has been there about a week.

 

[philter4]

Looks like a deflated tunicate to me, when it is in not being moved around is there 2 openings, one lg and one smaller? When you say it moves in and out do you mean it changes positions, or goes in and out of a hole in the rock, or gets bigger and then smaller?

 

[cichlid333]

ditto thats what it also looks like to me as well